Improvement in key-hole guard and protector



lluted Stat-e5 anni' dtjiiiiw.

HENRY M. ELANAGIN, 0E PENN S GROVE, NEW JERSEY, ASSIGNOE TO HIM- SELE AND JOSEPH R. ELKINTON, OE SAME PLACE.

Letters Patent No. 99,178, elated January 25, 1870.

The Schedule referred to in these Letters Patent and making part ofthe same To all whom it may concern Y Be it known that I, HENRY M. FLANAGIN, of Penns Grove, in the county of Salem, and in the State of New Jersey, have invented a certain new and useful Independent Key-Hole Guard for Door- Locks and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which- Figure 1 is a sectional plan view of the invention.

Figure 2 is a sectional elevation, through the line a; x of iig. l.

The nature of my invention consists in the combination of the sliding protection-plate, as constructed and operating, with the bed-plate and key-hole lining or bushing, as hereinafter described.

v To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. i

In the construction of my invention- The lines A A indicate a section of the door, to which the lock B is attached, in fig. I. I do not claim any improvement in the lock.

a is a chilled bed-plate, to which is attached the bushing or lining of the key-hole b. These parts can be castsolid, in one piece,and are let in the door from the inside, by removing the lock.

The upper and lower edges of the bed-plate a. have projections raised, as guards for the sliding protectionplate c. This protection-plate is also hardened, to prevent being drilled through from the outside.

0n the lower edge of this plate is lattached a ratchet, e. This ratchet I contemplate to be out in the lower edge ofthe plate c, and thus avoid making a separate piece. On the upper edge it is raised, so as to act as a guard or slide against the lock. These parts are with- `in the door, and under or behind the lock.

d is a bed-plate, of circular form, to the outer side of 'which is a projection of an eighth of an inch, and

'a plate, d', of a quarter of an inch, and resting on the door, in which are two slots, e e, for holding the springlever in position, as required.

c' is a wheel, withcogs onits upper edge, extending about one-third of the circumference of the wheel.

This wheel has attached to it a spring-lever, f, and rests on the plate d', and is used to revolve the wheel e', which wheel is snugly set wit-hin and on the baseplate d, which plate tl is let into the door below plate c, and is secured to the door by a screw passing through the centre of the wheel and bed-plate, as seen in fig. 1.

A cap, g, asseen in g. 2, is set over the wheel and bed-plate, to protect the same, and is secured by screws to the door, as also seen in tig. 2.

I may nd it convenient to dispense with tue wheel e', and make an arc of a circle to the upper end of on bed-plate a, between the guards of said plate. Thev bed-plate d is let into the door below said bed-plate a.. The wheel e', with lever j, is let into said bed-plate d,

and fastened, by the screw h, to the door. The cap gis then put on and fastened with screwt' the cogs in wheel c fitting into the cogs on plate o or ratchet c', and the lock is then putin its place, and fastened by its screws to the door, and the invention is complete.

When it is desired to prevent entrance, it is only necessary to move the spring-lever f to the right hand, and the wheel with its cogs catching into the cogs or ratchet on plate c, slides it over the key-hole, and completely covers it, and prevents the insertion of a key, or taking hold of the'key with nippers from theV outside; the spring-lever then falls into the slot c, on the right-hand side, and thus prevents the moving of the plate covering the key-hole from the outside. A

To remove the plate c, and open the key-hole, move the lever f to the left hand, and the slide is thrownback under the 1ock,and the lever catches into the slot on the left hand, and the door can be unlocked.

That portion of the cover g that is directly above the sweep of the lever f, is cut away to allow the lever to slide freely, and to hold. it in its place in being moved.

The invention can be used on any door by reversing the bedplate,'whether right or left-hand doors.

1 am aware that sliding plates to cover the keyhole are not new, therefore, l do lnot claim, broadly,

, such plate.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. The bed-plate a., with key-hole lining b, and sliding protection-plate, in combination with the door lock B, substantially as described, and for the purposes set forth.

2. The wheel c', with lever f, or its equivalent, plates l and d', and cap g, in combination with sliding protection-plate o, substantially as described, and operating as and for the purpose set forth.

In testimony that I claim the above-described certain new and useful independent key-hole guard for door-locks,I have hereunto signed my name, this 6th day of January, 1870.

Viitnesses: HENRY M. FLANAGIN.

V. C. CLAYTON, T. G. CLAYTON. 

